Railway-car-vestibule door and trap.



W. H. CARROLL.

RAILWAY CAR VBSTIBULE DOOR AND TRAP.

APPLICATION FILED AUG. 8, 1912.

Patented Mar. 18, 1913.

5 SHEETS-SHEET 1- v? QQiiwmf 5 SHEETSSHEET 2.

W. H. CARROLL.

RAILWAY GAR VESTIBULE DOOR AND TRAP.

APPLICATION FILED AUG. 8, 1912.

Patented Mar.

N S A N X N 4 6M RN IA// n////////// r H/ IN/ M I 4 o 1,. o w KN .3 mg mQ m\ m R mm mm C w 5 v x A u K M i W N .N mm. .mm Q mdrmfi m iwi/Mucousy W. H. CARROLL.

RAILWAY OAR VESTIBULE DOOR AND TRAP.

APPLICATION TILED AUG. 3, 1912.

Patented Mar. 18, 1913.

5 SHBETSSHEET 4.

W. H. CARROLL.

RAILWAY GAR VESTIBULE DOOR AND TRAP.

APPLICATION FILED AUG. 3, 1912. 1,056,149. Patented Mar.18,1913.

5 SHEETS-SHEET 5.

WILLIAM H. CARROLL, OF JERSEY CITY, NEW JERSEY.

RAILWAY-GAR-VESTIBULE DOOR AND TRAP.

Specification of Letters Patent.

Patented Mar. 18, 1913.

Application filed August 3, 1912. Serial No. 713,136.

To aZZ whom it may concern Be it known that I, l/VILLIAM H. CARROLL, acitizen of the United States of America, residing at Jersey City, Hudsoncounty, New Jersey, have invented certain new and useful Improvements inRailway-Car-Vestibule Doors and Traps, of which the following is aspecification.

This invention relates to improved mechanism designed more especiallyfor opening and closing the outside doors and step-covering traps ofrailway cars as may be necessary to permit eXit and entracepf passengersat stations having either hlgh or low platforms, but the invention isapplicable for operating any two independent structures requiringsuccessive going and return movements, or requiring that one of the twostructures be given going and return move ments while the otherstructure remains at rest.

The invention embodies improvements in mechanism of similar classdescribed in my concurrent patent application having Serial Number651,967, and has for its more special objects to dispense with springsin the door and trap operating traveler and slide mechanism whileproviding simple and e'llicient locking means on the traveler and slidesfor locking the door and trap in any open or closed positions to whichthey may be adjusted when operating the traveler preferably by anendless cable actuated by a trainman standing on the car platform orstanding on the roadbed or elsewhere out side the car.

The invention will first be described and then will be particularlydefined in claims hereinafter set forth.

Reference is made to the accompanying drawings forming part of thisspecification, and in which- Figure 1 is a broken sectional perspectiveview of the left hand portion of the rear platform of a vcstibuledrailway car showing a hinged door open and a hinged trap closed. Fig. 2is a detail longitudinal vertical section with both door and trap open,the section of the traveler and slide mechanism and connections beingtaken on the line 'oo in Fig. 3. Fig. 3 is a transverse vertical sectiontaken on the line ww in Fig. 2. Fig. 4; is a detail sectional endelevation more especially showing auxiliary means for operating the doorand trap from slide mechanism for operating a hinged door and trap atthe right hand portion of the rear car platform. Fig. 11 is a verticallongitudinal section on the line 2 in Fig. 10. Fig. 12 is a sectionalplan view showing modified connections successively operating an endplatform sliding door and a central side sliding door. Fig. 13 is avertical section on the line 2-2 in Fig. 12. Fig. 14: is a detail endelevation showing the crossed cable operating from outside the car themechanism illustrated in Figs. 12 and 13, and Fig. 15 is a detailsectional plan view showing an uncrossed cable actuating sliding doormechanism at the opposite side of the car. Figs. 10 to 15 illustrate howthe connections may be arranged to always open and close the car doorsand traps at opposite sides of the car and by similar standard easilyremembered rotative movements of the hand wheels shown for operating thecable connected traveler and slide mechanism.

First referring more particularly to Figs. 1 to 9 of the drawings, theletter A indicates the reciprocatory traveler. B is a primary slidecarrying a pivoted hook C, and D is an adjoining secondary slidecarrying a pivoted hook E, both slides B, D, being arranged at one edgeor side of the traveler. At the opposite edge or side of the travelerare arranged two similar primary and secondary slides F, H, respectivelycarrying pivoted hooks G, I, these nine simple parts A to I constitutinga traveler and slide mechanism adapted through suitable connections toopen and close a car door J, and stepcovering trap K, when the traveleris reciprocated by any suitable means such as as endless cable L. Thiscable is operated by a hand wheel M, journaled on an upright of the carplatform frame, and preferably also by a hand wheel 0 journaled on theend of the car body and operative from outside the car by a trainmanstanding on laterally beyond adjacent edge the station platform or atthe side of the railway track. This mechanism A, to i, is arranged towork within a protecting ca ing R, secured flatwise underneath the floor7) of the car body P, and the traveler ilL, projects from this casing atone end to permit its connection at Z to one side of the cable L. Thereciprocatory traveler A, and the two outer slides D, H, mayrespectively have fixed pins (4, (Z, 71 running in straight guidingslots 9 formed in the casing It, and the two slides B, F, are guidededgewise between opposite edges of the traveler A, and slides D, H,respectively.

The traveler A has at one edge a notch 1, next which is a lug 2, and atits opposite edge the traveler has another notch 3 and an adjacent endlug 4, said lugs 2, -.l-, projecting laterally beyond respectiveopposite sides or edges of the traveler. The primary slide B at itsouter edge has a notch a and an adjacent end lug t3, and the primaryslide ll, at its outer edge has a notch Y and an adjacent end lug 8,said lugs t3, 3, projecting of the slider Each pivoted hook i (it,broadened at its oule part to give room laterally for formation in thehook (l. ot' a notch next the inner wall ot which is a ochii lug c, andfor hirmation in the hook E, of a similar inner edge notch 10 next which1: a locking l: and the hook G has a similar edge noun ll next which isa locking lug y, and the hoolc l has a similar edge notch 12 nerd whichis a locking lug 2". The hook (I at its outer end has a pin 13 whichslides in a suitable guide shown as a slot formed in the casing ll, andhaving a straightpart ll, an inclined part 15, and an end part 1t) whichis about at right angle to the slot part 1 The book l at its outer endcarries a pin 17 which slides in a guide slot having a straight part 18,an inclined part 1.9 and an end part 20 which is about at right angle tothe slot part 18. The hook G at its outer end carries a pin 21 whichslides in a guide slot having a straight part 22, an inclined part 2;";and an end part 2st which is about at right angle to the slot part 22,and the hook I at its outer end carries a pin 25 running in a guide slothaving a straight part 26, an inclined part 27, and an end part- 28which is about at right angle to the slot part 26. The hooks C, E, G, l,necessarily move with the respec ive slides B, D, F, ll, and are inOilfcct portions o'l said slides.

Figs. 1 to 9 of the drawings show that a rod 2%), pivoted at 30 to a lagon the secondary slide D, is pivot-ed at 81 to an arm 3-32 rigid on asegment gear 3?) tulcrumed at 3-lto the car body. This gear 33 engages asegment gear 35 fixed to the lower rigid vertical hinge pintle 36 of thecar door J,

LOMLUM other secondary slide H, is fixed a lug 3T pivotally connected bya link 38 to an arm 35) r' 'dly fixed to the horizontal hinge bar it)jorn-naled in bearings 11 on the car platform frame and so fixed to thetrap K that when said bar it) is turned onewjuarter around and back, thetrap will be opened and closed. The cable l) passes around lower pulleysi2, 13, which guide its lower horizontal bight and direct its verticalbighl upward along an upright ot the car frame which may be the post llat the outside oi the main end doorway to of the car body, but saidvertical cable bight is intentionally passed upward next the extremeouter end upright 4-6 o'l the car platform in order to preventinterference of the cable or of its operator with exit or entrance ofpassengers at the main car doorway 4:5. Said verti *al cable bight isfixed to an upper pulley which fixedly carries the cable operating wheelM which has a handle in tor turning it. Flhould it be desired to use anoutside operating wheel O, having a handle 0, one side oi the verticalbight of cable L is carried laterally over guide pulleys 4-8, in anauxiliary bight or loop Ii which passes around and is fixed to an insidepulley ll) whose shai t is journaled in. the car platform frame andfixedly carries said wheel 0 which thus is accessible from outside thecar.

Before briefly describing the modificalions shown in Figs. 10 to 15 ofthe drawings, the operation of the above named parts shown in Figs. 1 to9 will be described as 'lt'ollows, presuming that the wheel is used toactuate the cable L from the car platform.

in Figs. 2, 3, the door J and trap K are both open at which time thehandle in of wheel stands on the radial line 8, in 2, and to whichposition the handle had been turned downward and to the right hand indirection ol arrow i, from the position at the radial line a. where thehandle m stood when both the door and trap were closed as shown in Figs.5 and F. To close the open door and trap the wheel handle m. is turneddownward. toward. the left hand in reverse direction of the arrow 75,for less than one revolution or itintil the iandle m, again stands onthe radial line H.

Assuming that the door J and trap K are both closed as in Figs. 5 and 6,and that the train is approaching a station having a platform on a levelwith the closed trap K, said trap is to remain closed to allow passengcrs to walk over it after the door .l is opened. 'lo thus open. thedoor the handle an. oi wheel M is turned from radial line a in directionof arrow it, nearly half-way around to the position of Fig. 1. Thiscarries the cable-c n1nected traveler A to the left hand troni theposition of Fig. 5 to the for opening and closing the door. To the lposition of Figs. 1 and 7, with the following results. Fig. 5 shows thatat the beginning of this left hand movement the traveler lug 2 is withinthe notch 9 of the hook O of the primary slide B, and is held there bythe hook pin 13 now in the straight part 14 of the adjacent guide slotwhile at this time the pin 17 of hook E on the secondary slide D, islocked within the outer part 20 of the adjacent guide slot by the hooklug 6 resting against the edge of the slide B a little behind its notch5, whereby the door J is securely locked closed by the traveler andslide mechanism itself and independently of locking devices acting on orwith the cable L, such as are shown in my prior com panion applicationNo. 651,967. As the traveler A begins its left hand movement its lug 2now engaged in the notch 9 of the hook C, draws this hook and thecoupled primary slide B with it until the slide notch 5 opposes the luge of the hook E of secondary slide D. The door J is unlocked when thelug 6 of moving slide B, strikes the hook lug e, and moves the pin 17 ofv hook E out of the part 20 of the adjacent guide slot and into theinclined portion 19 of said slot which then swings the hook E inward andcarries its lug (2 into the notch 5 of slide B, and fully engages theslide lug 6 with the notch 10 of hook E. Continued left-hand movement ofthe traveler A, by the engagement of its lug 2 with the hook C, will nowdraw the slide B and hook E with it and the hook E necessarily moves theslide D with it while the hook pin 17 moves along the straight part 18of its guide slot, as indicated in Fig. 7. Meanwhile the pin 13 of thehook C had moved along the straight part 1st of the adjacent guide slotand outward along the inclined slot part 15 and into the locking slotpart 16, whereby the notch 9 of hook C had been disengaged from the lug2 of the moving traveler A, and when the traveler notch 1, passes thehook lug c, the end of this lug will bear against the adjacent edge ofthe traveler A to hold the hook pin 13 in the slot part 16 and thussecurely lock the door J open, to which open position the door had beenadjusted by movements of the indirect-acting connections 29 to 35between the door pintle 36 and the moving secondary slide D. As the trapis to remain closed the traveler A is moved to the left-hand butslightly farther than is shown in Fig. 7, to allow the hook lug c tofinally lock against the edge of traveler A, behind its notch 1 toconfine the hook pin 13 in the slide-locking slot part 16, as in Fig. 8.After the passengers have left and entered the car at this stationhaving a platform level wit-h the closed trap K, the open door J isagain to be closed. This is done by simply turning the wheel M back tothe left-hand or in reverse direction of the arrow 2, from the positionof Fig. 1, until its handle m, again stands at the radial line 14, inFig. 2, and during this action the traveler and slide mechanism operatesas follows. Left-hand turning of wheel M draws the traveler A toward theright-hand. The lug 6 of slide B, now is fully engaged with the notch 10of hook E, and the traveler A need move but slightly to the right-handto bring its lug 2 against the lug c of the hook O whose pin 13 now willmove out of the locking slot part 16, and as said pin moves along thecam slot portion 15, the hook lug 0 will enter the traveler notch 1, andthe lug 2 of traveler A. will be fully engaged with the notch 9 of hookC, which will cause said hook and the coupled slide B to move with thetraveler. As the slide lug 6 already engages the notch 10 of hook E,said hook and the coupled slide D will be moved to the right-hand andwill cause reverse movements of the indirect-acting connections 29 to35, to close the now unlocked car door J. Toward the end of saidrighthand movements of the parts A, B, C, D, E, the pin 17 in hook E,rides from the guide slot part 18 along the cam slot part 19 and intothe locking slot part 20, thereby disengaging the notch 10 of hook Efrom the slide lug 6, and a slightly further righthand movement oftraveler A, which is still engaged with the hook C, carries the slide Bforward until its edge portion just behind the notch 5 stands next thehook lug e, and thus prevents withdrawal of the hook pin 17 from theslot part 20, thereby securely locking the door J closed, and all partsnow are returned to relative positions shown in Figs. 5 and 6 of thedrawings, with the door and trap both closed and locked.

Should the train next approach a station having a low platform requiringpassengers to leave and enter by the car platform steps 51 shown in Fig.3, both the door J and trap K must be opened as shown in Figs. 2 and 3.As the door swings open above the closed trap, the door must be openedbefore the trap is opened, and the trap must be closed before the dooris closed. The opening of the door by a limited left-hand movement ofthe traveler A, carrying the parts B, C, D, E, from the positions ofFig. 5, to those of Fig. 7, has been hereinabove described leaving itnecessary only to explain in detail the relative movements of the slidesand hooks F, G, H, I, at the opposite edge of the traveler, and withmore special reference to Figs. 7, 8 and 9 of the drawings. When thedoor J is locked open by the pin hook 13 held in guide slot part 16 bycontact of hook lug 0, with the adjacent edge of the traveler A, thelatter has moved a little farther to the left-hand than is shown in Fig.7, and in Fig. 8 the traveler has continued its left-hand movement fornearly one-half the additional distance required of Fig. 9. Soon afterthe a of hook x1,

rides onto the edge of the moi" trareler it. behind its notch l, "k tnodoor J traveler lu res the log 9 hook inward from the trap went: guide:3 v

locking .iart of the a and then along the cam slot part 23 into thestraight slot part 2. and causing ttnll open, the

engagement of the traveler: lug 4: with the notch 11 of hook G, wherebvsaid lug -el: now moves this hook and id r the primary sl with it, andas the lug 8 oi slide it, is now held engaged with the noteh oi the hookI while the hook iiin moves along the straight part of the adjacentguide slot, the secondary slide ll is now moved toward the left-hand bythe ei'igaged trav eler and slide parts it, t} F, I. while the slideparts B, C, D, 1), remain at rest; and mianwhilo the open door J, iskept locked by contact of the hook log o with the moving traveler it.The direct-axting runnertions 3? to 4.0 between slide ll, and trap ii,assure that while the traveler it; moving from the position of 7 to thatof Fig. 5), the trap is swung open upward, it being partially opened inFig. 8, and full y open in Fig. 9. i s the traveler LL was aboutcompleting its left-hand movement the pin 25 ot hook I passed from thestraight guide slot part it; and through the cam slot part into thelocking slot part 28 whereby the hook I was thrown back to disengage itsnotch 12 from the lug 8 of ide I and the traveler tin-ally moves alittle farther to the le'l'tdiancl to carry the outer edge of slide ibehind. its notch 7, in front of ti o lug i of hook It, to securely lockthe trap ii. open, and sul'istantially as the door J was and lockedopen. by the hook lug acting; directly on the traveler A. The wheel Mnow had been turned in direction oi arrow If to the position on the*adial line .9, shown in Fig. 2, and all parts have relative 'iositionsshown in Figs. 2, and 9 of the drawings.

After the train leaves the low-platform station the trap iii, and door5. must be closed and. this done by tiurnii'in the wheel M in reversedirection of the arrow i. as its handle 02?. moves )111 the radial lines to the radial line a in .l ig. F2. 'lhe non-h ll of hook G now enga esthe 'raveler lug t.

as in Fig. l), and as the traveler It. is moved to the righhhand by theconnected cable l1. j

the yin 21 of hook G runs alon the straieht part of the ad acent guideslot, and when the hi 8 of slide i strikes the lUQ' 2? ol hook I, itswlngs said hook inward thereby the the hook pin 25 from the lookinginto full engagement with the log 8 of slide F, and the hook pin nextmoves along the straight slot part 26, while the hook I carries slide Hwith. it to the right hand and slide H. operates the (.lirect-aetingconnections A)? to $0, to close the trap K, at about the time the pin 21of hook G had passed trom the inclined slot part into the locking slotpart 2 L, thereby disengaging the notch ll of the now outmoved hook G,from the lug l of traveler it, and a slightly farther rightdrand advanceof the trarolemoves its edge portion lying; behind the notch 23,opposite the log y, thereby locking the hook pin 21 in the slot part 2%to prevent: further rightdiand movement of the hooks G, it, and slidesF, l, and to securely lock the trap K closed, but leaving the traveler Atree to make further righthand movement to the linal position shown inFigs. 5 and t), for closing and locking: the door J, by action of thehooks i C, and slides B. l), in manner hereinbetore 'lully explained. itafter closing the trap K, by partial right-hand movement of the travelerit should be desired to at once reopen the tr: p, this may he done. bymoving the traveler from intermediate position to its extreme leitt-handposition shown in Figs. 2 and 9. it thus appears that by this ion provedt'aveler and slide mechanism and suitable oonnections from the twosecoml ary slides D, H, to the door Jr and trap l l, either door or trapmay opened or the closed, and locked at either open, or closedadjustments, independently of each other as circumstances may require.The door or t tip, or other single structure, may be given QOlUQ' andreturn movements and be lorked by traveler and slide mechanism includingprimary and secondary slides operating at, only one edge or side of the.traveler. The. outside wheel 0 is necessi rily turned by the :able llwhen the cable is operated by the wheel Ill, and the handles 0, m, ofboth wheels describe similar arcs of movement during like operation oilthe door J. and trap K. Any other means, such as levers tnlornmed to thecar and coupled to the cable, or pnemnatio or electric connections tothe traveler, may be used for operating; the traveler and primary andsecondary slide i'nechanisn'i in manner hereinbefore described.

The door and t up should always be opened or closed by similar easilyremenr herod standard rotative movements of the cable ope 'ating wheelM, or O, whether the door and trap be at the left or right.- side o'l. acar platform, or whether an end sliding door and an intermediate sidesliding door are to be opened or closedat opposite sides of a car bythis traveler and slide 1necha nism. It is therefore deemed best to showin Figs. 10 to 15 of the drawings certain modifications of connectionsfrom the traveler and slide mechanism to such ditterently arranged doorsor traps and to briefly describe such connections.

In Figs. 10 and 11. the slide H. operates the door J, by direct-actingconnections comprising a guided rack bar which engages the door pintlcsegment gear and is cou pled by a link 53 to a lever 5st tulcrumed at tothe car body and in turn coupled by a link 56 to a lug 5T fixed to slideH. The trap K. is actuated from. the slide 1), by indirect-actingconnections comprising a rack bar 58. carried by slide D, and engaging asegment gear 59 fixed to a countershaft 60, which carries a reverselyarranged segment gear 61, engaging a segment gear 62, fixed to the hingeshaft $0 of the trap K. This is a reverse arrangement of connectionsfrom that shown in Figs. 1 to 9, wherein the door J is operated from theslide D, and the trap K, "from the slide H, and in Figs. 10 and 11, thedoor and trap are closed by a left-hand movement of the traveler A, andare opened by its righthand movement, which also is the reverse of thetraveler action in Figs. 1 to 9, wherein the door and trap are opened byleft-hand movement of traveler A, and are closed by its right-handmovement. By thus arranging the connections in Figs. 10 and 11. the doorJ will always be opened before the trap is opened, and the open trapwill always be closed before the door is closed, and while thecableoperating wheels M, O, turn to the right or left hand through thesame standard arcs of movementas are required for operating the door andtrap in Figs. 1 to 9, at the opposite side of the car.

Figs. 12 to 14 show how the same traveler and slide mechanism A to I, isadapted to open the end sliding door S, before the intermediate sidesliding door T, is opened, and to close the door T before the door S isclosed, the door opening being ettected by right-hand movement oftraveler A, which moves to the left-hand while closing them. Theplatform door S is coupled by a link 63, to one end of a lever 1tulcrumed at 65 to the car body P, and in turn coupled by a link 66 to alug 67 fixed to the secondary slide H. The side door T is coupled to oneend of a lever 68 the other end of which has a. pin-and-slot connectionat (39-70, with the car body. A rod 71 connects the lever 68 to theother secondary slide D. With these connections 63 to 71, it isnecessary to cross the main vertical bight of the cable L at m, and tocross at Z the lateral cable bight L, leading to the outside operatingwheel O, in order that the wheels M, 0, shall turn through the samestandard arcs of movement as are required for opening or closing the cardoor and trap previously I? described.

Fig. 15 is introduced simply to indicate I through the known standardarcs of movement to properly operate the here uncrossed cable L.

In view of the aforesaid detailed description of relative movements ofparts of the traveler and slide mechanism during unlocking and openingand closing and locking the car door and trap shown in Figs. 1 to 9, itis deemed unnecessary to repeat detailed statements of substantiallysimilar operations of the traveler and slide mechanism shown in Figs. 10to 15, which will readily be understood without further explanation. Thescale of Figs. 12 to 15 being materially reduced in order to include theside doors T, in Figs. 12 and 18, it was deemed inadvisable to attemptto numerically indicate the tour slide hook pins and all parts of thetour guide slots in which the pins move during operation of the travelerand slides, as the identity and coaction of these pins and slots will beclearly evident from the above detailed description of the operation ofsimilar parts shown in Figs- 1 to 9 of the drawings.

1 claim as my .invention 1. In mechanism of the traveler, a primaryslide and a secondary character de-. scribed, the combinatlon of areciprocatiory slide, the traveler and primary slide having mutuallyengaging and releasing shoulders whereby the primary slide is actuatedby the traveler, and the primary and secondary slides having mutuallyengaging and releasing shoulders whereby the secondary slide is actuatedby the primary slide, connections from the secondary slide to astructure to be operated, and means actuating the traveler.

2. In mechanism of the character de scribed, the combination of areciprocatory traveler, a primary slide and a secondary slide, thetraveler and primary slide having mutually engaging and releasingshoulders whereby the primary slide is actuated by the traveler, and theprimary and secondary slides having mutually engaging and releasingshoulders whereby the secondary slide is actuated by the primary slide,connections from the secondary slide to a structure to be operated,means actuating the traveler,

and means locking the secondary slide and I the structure operated byit.

3. In mechanism of the character described, the con'ibination of a,reciprocatory traveler, primary and secondary slides at each edge of thetraveler, the traveler and primary slides having mutually engaging andreleasing shoulders whereby said primary slides are actuated by thetraveler, and the primary and secondary slides having mutually engagingand releasing shoulders whereby the secondary slides are actuated by theprimary slides, connections from one secondary slide to one structure tobe operated, connections from the other secondary slide to anotherstructinre to be independently operated, and means actuating thetraveler.

t. In mechanism of the character de scribed, the combination of arec-iprocatmy traveler, primary and secondary slides at each edge of thetraveler, the traveler and primary slides having mutually engaging andreleasing shoulders whereby said primary slides are actuated by thetraveler, and the primary and secondary slides having mutually engagingand releasing shoulders whereby the secondary slides are actuated by theprimary slides, connections from one secondary slide to one structure tobe operated, connections from the other secondary slide to anotherstructure to be independently operated, means actuating the traveler,and means locking the secondary slides and the structures operated bythem.

5. In mechanism of the character described, the cfill'llfliilfliltu] oila l'eeiprocatm y traveler having a projecting lug, a priniiary slidenext the t 'aveler and having a. projecting lug, a hook pivoted to theprimary slide and having a notch and an adjacent looking lug, asecondary slide next the primary slide, connections from the secondaryslide to a structure to be operated, a hook piv oted to the secondaryslide and having a notch and an adjacent locking lug, pins on the hooks,and relatively stationary guides engaging the hook pins and havingstraight, inclined and right-angular portions whereby the primary andsecondary slide hook notches are respectively engaged with the travelerand primary slide lugs and are at proper times disengaged therefrom andwhen so disengaged the hook pins enter the right-angu lar guide portionsand the locking lugs of the primary and secondary slide hooks restrespectively against the trzveler and primary slide and lock thesecondary slide and the structure operate-d thereby at the end of bothgoing and return movements of said structure.

6. In mechanism of the character described, the combination ot areciprocatior traveler having at respective opposite edges tivoprojecting lugs, two primary slides arranged one next each edge of thetraveler and each having a projecting lug, a heel: pivoted to eachprimary slide and having a notch and an adjacent locking lug, tivosecondary slides arranged next the primary slides, connections from saidsecondary slides respectively to tvvo structures to be independentlyoperated, a hook pivoted to each secondary slide and having a notch andan adjacent locking lug, pins on the prin'iary and secondary slidehooks, and relatively stationary guides engaging the hook pins andhaving straight, inclined and rightangular portions whereby the primaryand secondary slide hook notches are respectively engaged with thetraveler and primary slide lugs and are at proper times disengagedtherefrom and when so disengaged the hook pins enter the right-angularguide portions and the locking lugs of the primary and secondary slidehooks rest respectively against the traveler and primary slides and lockthe secondary slides and the two structures operated thereby at the endoil. both going and return movements of said structures.

T. in mechanism of the character described, the combination with a carvestihule door and trap, oil? a reciprocatory traveler, primary andsecondary slides arranged a each edge of the traveler, the traveler andprimary slides having unit-ually engaging and releasing shoulderswhereby said primary slides are actuated by the traveler, and theprimary and seconcary slides having mutually engaging and releasingshoulders whereby the secondary slides are actuated by the primaryslides, connections from one secondary slide to the -ar door and tromthe other secondary slide to the trap for opening and closing said doorand trap, and means actuating the traveler.

R. in mechanism of the character dc scribed, the combination With a carvestibule door and trap, of a reciprocatory traveler, primary andsecondary slides arranged at each edge of the traveler, the traveler andprimary slides having mutually engaejing and releasing shoulders wherebysaid primary slides are actuat-el by the traveler, and the primary andsecondary slides having mutually engaging and releasing shoulderswhereby the secondary slides are actuated by the primary slides,connections from one secondary slide to the car door and from the othersecondary slide to the trr p for opening and closing said door and trap,means actuating the traveler. and means locking the secondary slides andeo-nseipientlylocking the connected door and. trap at open and closedadjustments.

9. in mechanism of the cl'iaracter described, the combination with a carvestibule door and trap, of a reciprocatory traveler having atrespective opposite edges tvvo projecting lugs, tvvo primary slides arranged one next each edge of the traveler and each having a projectinglug, a hook .for opening and closing them, a hook pivpivoted to eachprimary slide and having a notch and an adjacent locking lug, twosecondary slides arranged next the primary slides, connections from saidsecondary slides respectively to the car door and trap oted to achsecondary slide and having a notch and an adjacent locking lug. pins onthe primary and secondary slide hooks, relatively stationary guidesengaging the hook pins and having straight, inclined and right-angularportions whereby the primary and secondary slide hook notches are respectively engaged with the traveler and primary slide lugs and are atproper times disengaged therefrom and when so disengaged the hook pinsenter the right-angular guide portions and the locking lugs of theprimary and secondary slide hooks rest respectively against the travelerand primary slides and lock the secondary slides and con sequently lockthe connected door and trap at open and closed adjustments.

10. In mechanism of the character de scribed. the combination with a carvestibule door and trap, of a reciprocatory traveler, primary andsecondary slides ar ranged at each edge of the traveler, the travelerand primary slides having mutually engaging and I releasing shoulderswhereby said primary slides are actuated by the traveler, and theprimary and second-- ary slides having mutually engaging and re leasingshoulders whereby the secondary slides are actuated by the primaryslides, connections from one secondary slide to the car door and fromthe other secondary slide to the trap for opening and closing said doorand trap, an endless cable coupled to the traveler and running to thecar platform, and means at said platform actuating the cable.

11.. In mechanism of the character described. the combination with a carvestibulc door and trap. of a reciprocatory traveler, primary andsecondary slides arranged at each edge of the traveler, the traveler andprimary slides having mutually engaging and releasing shoulders wherebysaid primary slides are actuated by the traveler. and the primary andsecondary slides having mutually engaging and releasing shoulderswhereby the secondary slides are actuated by the primary slides,connections from one secondary slide to the car door and from the othersecondary slide to the trap for opening and closing said door and trap.an endless cable coupled to the traveler and running beside an uprightof the car vestibule frame, and a hand wheel journaled to said uprightand coupled to the cable for operating it by a trainman on the carplatform.

12. In mechanism of the character described, the combination with a carvestibule i door and trap, of a reciprocatory traveler, primary andsecondary slides arranged at each edge of the traveler, the traveler andprimary slides having mutually engaging and releasing shoulders wherebysaid primary slides are actuated by the traveler, and the primary andsecondary slides having mu tually engaging and releasing shoulderswhereby the secondary slides are actuated by the primary slides,connections from one secondary slide to the car door and from the othersecondary slide to the trap for opening and closing said door and trap,an endless cable coupled to the traveler and running beside an outerupright of the car vestibule frame, and means sustained by said uprightand coupled to the cable for operating it by a trainman on the carplatform and not interfering with exit and ent ance of passengers.

13. In mechanism of the character described, the combination with a carvestibule door and trap, of "areciprocatory traveler, primary andsecondary slides arranged at each edge of the traveler, the traveler andprimary slides having mutually engaging and releasing shoulders wherebysaid primary slides are actuated by the traveler, and the primary andsecondary slides having mutually engaging and releasing shoulderswhereby the secondary slides are actuated by the primary slides,connections from one secondary slide to the car door and from the othersecondary slide to the trap for opening and closing said door and trap,an.end less cable coupled to the traveler and running to the carplatform, means at said platform actuating the cable, said cable havinga laterally extended loop or bight, and means engaging said lateralcable bight and operative outside the car to actuate the traveler andslide mechanism therefrom.

14. In mechanism of the character described, the combination with a carvestibule door and trap, of traveler and slide devices and connectionstherefrom to the door and trap, of an endless cable coupled to thetraveler and running to the car platform, means at said platformactuating the cable, said cable having a laterally extended loop orbight, and means engaging said lateral cable bight and operative outsidethe car to actuate the traveler and slide mechanism therefrom.

15. In mechanism of the character described, the combination with areciprocatory traveler A, having a projecting lug 2, of a primary slideB, having a notch 5, and lug 6, a hook G, pivoted to slide B, and havinga notch 9, adapted to engage the traveler lug 2, and an adjacent lockinglug 0, adapted to bear on the traveler; a secondary slide D, next theslide B, a hook E, pivoted to slide D, and having a notch 10, adapted toengagethe lug 6, of slide B, and an adjacent lock ing lug 0 adapted tohear on slide B, said hooks C, E, respectively having pins 9, 17 g arelatively stationary guide 1 15, 16, for the hook pin 9, and arelatively stationary guide 18 19, 20, tor the hook pin 17 meansreciprocating the traveler, and connections from the slide D to astructure to he operated.

1.6, in mechanism of the character described the coinhination with areciprocatory traveler it, having projecting lugs 2, t, ot a pi'iniarvslide B, at one edge of the traveler and having a notch 5 and lug 6, ahook 1 pivoted to slide B, and having a notch 9, adanted to engage thetraveler lug 2, and an adjacent locking lug 0, adapted to hear on thetraveler; a secondary slide D. next the slide 1% a hook ll), pivoted toslide D, and having a notch 10, adapted to engage the tag 6, of slide B,and an adjacent locking lug adapted to bear on slide B, said hooks C,It), respectively ha vine pins S), 17, a relatively stationary guide 14,15, 1G, for the the hook pin 9, and a relatively stationary guide 18,19, 20, for the hook pin 17; a primary slide F, at the opposite edge ofthe traveler and having a notch 7, and lug 8 a hook G, pivoted to slideF, and ha ving a notch ll, adapted to engage the traveler lug t, and anadjacent locking lug 9, adapted to hear on the traveler; a secondaryslide it} next the slide F, a hook I pivoted to slide TL and having anotch 12, adapted to engage the lug 8, of slide 1* and an. adjacentlocking" lug I, adapted to hear on slide l1, said hooks G, 1respectively having pins 21., 25, a relatively stationary guide 2'), 23,2 1-, for the hook pin 21 and a relatively stationary guide 26, 27 2S.tor the hook pin .25, means reciprocating: the traveler and connectionsfrom the slides l), H, respeetivel); to tivo structures to beindependently operated.

lVUALliUt i Witnesses ALVIN K. Goonwin' G. A. C. BARNETT.

H. CARROLL.

Copies of this patent, may be obtained for five cents each, byaddressing the Commissioner of Patents, Washington, ID. 3.

